Nope. That is a SW question. You might try the TI e2e forum, I know that support for it is inside TI.
http://e2e.ti.com/support/arm/default.aspx Gerald On Mon, Oct 28, 2013 at 12:07 PM, <[email protected]> wrote: > Hi Gerald, > > I have the 16-bit NAND cape connected to me Beaglebone Black board in my > desk. > > Using mainline U-Boot and kernel the NAND is detected (had to modify the > muxing for 16-bit) > but the nand write/read doesn't work. I get "ECC uncorrectable" on every > "nand read". > > Can you point me to some custom U-Boot tree where this is supported? I > need to boot from NAND, so I need > to put both SPL and U-Boot in the flash, but for now, I would like to at > least flash the kernel to NAND and boot it from SD. > > Sorry to ask you directly, but I've been googling all past week for this > issue, and I found nothing but to hack > U-Boot myself! > > Regards and thanks in advance! > Ezequiel > > El martes, 28 de agosto de 2012 21:13:07 UTC-3, Gerald escribió: >> >> No idea at all. We should have support for NAND in the BeagleBone release >> in about 4-6 weeks. In the mena time you best bet may be to get help on the >> TI forums to get access to the unofficial things that is currently going >> on. I do know that you will need changes to UBoot for NAND to work in linux >> in general. >> >> Gerald >> >> On Tue, Aug 28, 2012 at 7:08 PM, Stan Hu <[email protected]> wrote: >> >>> Gerald, >>> >>> I got the onboard NAND flash working on U-Boot by disabling the MMC1 pin >>> mux (the BeagleBone daughter card settings was reconfiguring the pad for >>> GPMC_CSN0), but now Linux still doesn't seem to recognize the NAND chip. >>> The manufacturer and chip ID return 0 right now. >>> >>> I checked that the pin mux settings are right in Linux. Looking at the >>> scope, I think the chip select line is being toggled way too fast--it >>> doesn't remain active low for long enough. Do you have any idea why this >>> might be happening? >>> >>> On Tue, Aug 28, 2012 at 12:18 PM, Gerald Coley >>> <[email protected]>wrote: >>> >>>> We have a memory cape in house where we have 16b NAND working. I don't >>>> believe anything has been done with 8b. >>>> >>>> Gerald >>>> >>>> >>>> >>>> On Tue, Aug 28, 2012 at 2:13 PM, Stan Hu <[email protected]> wrote: >>>> >>>>> I've got an 8-bit Micron MT29 NAND flash hooked up to the GPMC lines >>>>> on a custom board derived from the BeagleBone and AM335x EVM. The NAND >>>>> flash is hooked up to the GPMC lines identically to the AM335X EVM. >>>>> >>>>> U-Boot does not see the NAND flash for some reason. When I probe the >>>>> WE and RE GPMC lines, I can see that the processor is talking to the NAND >>>>> chip, sending the RESET and retrieving the ONFI ID. The processor does >>>>> not >>>>> boot off this NAND because there is nothing programmed in it, so the >>>>> system >>>>> boots off the SD card. >>>>> >>>>> However, in the U-Boot config for the BeagleBone/AM335X evm >>>>> (include/configs/am335x_evm.h) appears to be configured to use talk to >>>>> NAND >>>>> via SPI. Is there a reason why this is the case, when the AM335x >>>>> schematics show that the onboard NAND is connected via GPMC? I tried >>>>> using >>>>> the U-Boot from TI's PSP, but that version of U-Boot does not seem to be >>>>> talking on the GPMC lines too. >>>>> >>>>> Has anyone ever gotten NAND to work directly on the main board? I was >>>>> going to recompile U-Boot with the GPMC options enabled, but is there >>>>> something obvious that I'm missing preventing me from getting this to >>>>> work. >>>>> >>>>> Incidentally, I also modified the Linux kernel (board-am335x.c) to >>>>> load the NAND, but all I get back from the chip and manufacturer IDs is >>>>> 0xFF. >>>>> >>>>> -- To join: http://beagleboard.org/discuss >>>>> To unsubscribe from this group, send email to: >>>>> beagleboard...@**googlegroups.com >>>>> >>>>> Frequently asked questions: http://beagleboard.org/faq >>>>> >>>> >>>> >>>> >>>> -- >>>> Gerald >>>> >>>> [email protected] >>>> http://beagleboard.org/ >>>> http://circuitco.com/support/ >>>> >>>> -- To join: http://beagleboard.org/discuss >>>> To unsubscribe from this group, send email to: >>>> beagleboard...@**googlegroups.com >>>> >>>> Frequently asked questions: http://beagleboard.org/faq >>>> >>> >>> -- To join: http://beagleboard.org/discuss >>> To unsubscribe from this group, send email to: >>> beagleboard...@**googlegroups.com >>> >>> Frequently asked questions: http://beagleboard.org/faq >>> >> >> >> >> -- >> Gerald >> >> [email protected] >> http://beagleboard.org/ >> http://circuitco.com/support/ >> >> -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/groups/opt_out. > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. 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